iOS 5.1 Beta 1 Released to Developers

Apple has seeded iOS 5.1 beta 1 to developers, the build is 9B5117b and runs on iPhone 4S, iPhone 4, iPhone 3GS, iPad, iPad 2, and iPod touch 3rd and 4th gen. For those in the iOS developer program, you can download the iOS 5.1 beta right now directly from Apple’s dev center as IPSW files. Alongside the iOS 5.1 beta came a new build of Xcode 4.3, which is also required for developing anything for iOS 5.1.

The 5.1 beta notes include many mentions of bugs, you can read the full release notes on 9to5mac if you’re interested. They also uncovered references to an unreleased iPad 2 model in the beta, which they presume is for the Sprint network.

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